Refrigeration apparatus control method under freezing transfer refrigerating function, refrigerator

Abstract

The application discloses a refrigeration equipment control method under a freezing transposition refrigeration function and a refrigerator. The refrigeration equipment control method under the freezing transposition refrigeration function is used for controlling a compressor, a fan of a freezing compartment and a fan of a refrigeration compartment in batches by using first-stage control logic and second-stage control logic when the freezing compartment is in a transposition mode and the refrigeration compartment is simultaneously started with a rapid cooling function. The first-stage control logic is used for making the refrigeration compartment and the freezing compartment in the transposition mode quickly reach a set temperature of the rapid cooling function. The second-stage control logic is used for making the refrigeration compartment and the freezing compartment in the transposition mode have a synchronous temperature under the rapid cooling function. The application can quickly achieve the rapid cooling function and synchronize the temperatures of different compartments.

Description

Technical Field

[0001] This invention relates to the technical field of refrigeration systems, and more particularly to a control method for refrigeration equipment with a freeze-to-freeze function. Background Technology

[0002] Refrigerators and freezers are common refrigeration devices. Currently, refrigerators and freezers have at least two compartments: a freezer compartment and a refrigerator compartment. However, each user's needs are different, and this fixed configuration cannot meet the personalized needs of users. For example, some users use the freezer compartment less often and the refrigerator compartment more often, so the freezer compartment is usually left empty, resulting in energy waste.

[0003] Prior art, disclosed in CN115247929A, is a refrigerator and its control method. This prior art refrigerator includes a cabinet defining a refrigerator compartment, a freezer compartment, and an evaporator compartment; an evaporator disposed within the evaporator compartment; a compressor connected to the evaporator; a refrigerator fan for directing airflow from the evaporator compartment toward the refrigerator compartment; and a refrigeration fan for directing airflow from the evaporator compartment toward the freezer compartment. In other words, this prior art refrigerator uses a refrigerator fan and a refrigeration fan to deliver air to the refrigerator compartment and freezer compartment respectively. Furthermore, the refrigerator may also include a refrigerator door for opening and closing the refrigerator compartment and a freezer door for opening and closing the freezer compartment.

[0004] The refrigerator compartment has a refrigeration mode, with a storage temperature of approximately 0–8°C. The freezer compartment has two modes: a freezer mode and a freezer-to-refrigeration mode. In freezer mode, the storage temperature is approximately -24 to -14°C. In freezer-to-refrigeration mode, the freezer compartment is used as a refrigerator compartment, and its storage temperature can be the same as or slightly lower than the refrigerator compartment's storage temperature range. Since freezers are generally smaller than refrigerators, when the freezer is used as a refrigerator compartment, its set temperature range is similar to that of the refrigerator compartment. Therefore, the freezer requires less cooling capacity than the refrigerator compartment. When the compressor's start / stop is controlled by the freezer's internal temperature, it is easy to reach the freezer shutdown temperature after switching to refrigeration, causing the compressor to shut down. At this time, the refrigerator compartment may not have reached the refrigeration shutdown temperature yet. This is the fundamental reason why existing freezer-to-refrigeration systems that control the compressor's start / stop based on the freezer's internal temperature result in poor cooling performance in the refrigerator compartment. To address this problem, the existing technology proposes a refrigerator control method that includes: acquiring the temperature inside the freezer compartment when the refrigerator is in a freezer-to-refrigeration mode (converting the freezer compartment to a refrigerator compartment); and when the temperature inside the freezer compartment reaches the freezer start-up temperature in the freezer-to-refrigeration mode, starting the compressor and the refrigerator fan, and then delaying for a first preset time before starting the refrigeration fan again. This allows cooling airflow to be delivered to the refrigerator compartment first, followed by a delay of the first preset time before delivering cooling airflow to the freezer compartment. In other words, by extending the start-up time of the refrigeration fan when the temperature inside the freezer compartment reaches the freezer start-up temperature in the freezer-to-refrigeration mode, the refrigerator compartment is cooled for a period of time before both the refrigerator and freezer compartments are cooled simultaneously. This increases the cooling airflow to the refrigerator compartment, ensuring that both the freezer and refrigerator compartments reach their respective shutdown temperatures, thus guaranteeing good cooling performance for both compartments.

[0005] See Figure 1 Step 201: Determine whether the refrigerator is in freezer-to-refrigeration mode; if yes, proceed to step S203; if no, proceed to step S202.

[0006] Step S202: Control the operation of the compressor, refrigeration fan and freezer fan according to the conventional settings;

[0007] Step S203: Obtain the temperature inside the freezer compartment;

[0008] Step S204: Determine whether the temperature inside the freezer compartment has reached the freezer start-up temperature in the freezer-to-refrigeration mode; if yes, proceed to step S205; otherwise, return to step S203.

[0009] Step S205: Start the compressor and refrigeration fan, and start timing;

[0010] Step S206: Determine whether the timing time has reached the first preset duration; if yes, proceed to step S207; otherwise, continue timing.

[0011] Step S207: Start the refrigeration fan.

[0012] As can be seen from the above-mentioned prior art, it has solved to some extent the problem of how to avoid temperature mismatch between the two after the freezer is converted to the refrigerator, which would lead to inaccurate compressor shutdown. However, the operating states of refrigeration equipment such as refrigerators are diverse, and the prior art can only be applied to a few cases. It cannot solve the problem of temperature synchronization between the freezer and refrigerator compartments after the freezer compartment is converted in all cases.

[0013] In addition, most refrigerator compartments on the market currently have a rapid cooling function. How to control the rapid cooling function when the refrigerator compartment starts, how to control the rapid cooling function when the freezer compartment starts after the transfer is completed, and especially how to control the rapid cooling function when the refrigerator compartment and the freezer compartment after the transfer are started at the same time are not addressed in the existing technology.

[0014] Therefore, how to provide a control method for refrigeration equipment with freezing-transfer refrigeration function is a technical problem to be solved. Summary of the Invention

[0015] In order to solve the technical problem of lack of corresponding control for simultaneous rapid cooling of multiple compartments under the freezer-transfer refrigeration function in the prior art, the present invention proposes a refrigeration equipment control method and a refrigerator under the freezer-transfer refrigeration function.

[0016] The refrigeration equipment control method proposed in this invention under the freezer-to-refrigeration function involves controlling the compressor, the fan in the freezer compartment, and the fan in the refrigerator compartment in batches using a first-stage control logic and a second-stage control logic when the freezer compartment is in the transfer mode and the refrigerator compartment is simultaneously activated for rapid cooling. The first-stage control logic is used to enable the refrigerator compartment and the freezer compartment in the transfer mode to quickly reach the set temperature of the rapid cooling function, and the second-stage control logic is used to synchronize the temperatures of the refrigerator compartment and the freezer compartment in the transfer mode under the rapid cooling function.

[0017] Furthermore, the first stage control logic includes: the fan in the freezer compartment runs at maximum speed until the freezer compartment reaches the set temperature of the rapid cooling function; the fan in the refrigerator compartment runs at maximum speed until the refrigerator compartment reaches the set temperature of the rapid cooling function; and the compressor stops when both the freezer compartment and the refrigerator compartment reach the set temperature of the rapid cooling function.

[0018] Furthermore, the second-stage control logic includes: controlling the compressor to start, according to the proportional v 冻速率 :v 藏速率Control the fan speed of the freezer and refrigerator compartments, v 冻速率 v represents the rate of temperature change in the freezer compartment per unit time after the compressor stops. 藏速率 This represents the rate of temperature change in the cold storage compartment per unit time after the compressor stops.

[0019] Furthermore, when the freezer compartment is powered on and the refrigeration equipment is in the switching mode, the fan speeds of the freezer compartment and the refrigerator compartment are controlled according to the ratio Vd:Vc until the freezer compartment and the refrigerator compartment reach the preset temperature of the corresponding refrigeration mode, where Vd is the volume of the freezer compartment and Vc is the volume of the refrigerator compartment.

[0020] Furthermore, when the freezer compartment is in the transposition mode and the refrigerator compartment simultaneously activates the rapid cooling function for a preset time, the rapid cooling function is deactivated. The speed of the corresponding fans in the freezer compartment and the refrigerator compartment is controlled according to the ratio Vd:Vc until the freezer compartment and the refrigerator compartment reach the preset temperature of the corresponding refrigerator mode. Vd is the volume of the freezer compartment and Vc is the volume of the refrigerator compartment.

[0021] Furthermore, when the freezer compartment is in the stable cooling mode of the refrigeration equipment and the switch mode is activated, the fans of the freezer compartment and the refrigerator compartment are controlled in batches using initial stage control logic and secondary stage control logic. The initial stage control logic is used to reduce the temperature difference between the freezer compartment and the refrigerator compartment, and the secondary stage control logic is used to synchronize the temperature of the refrigerator compartment and the freezer compartment in the switch mode in the refrigeration mode.

[0022] Furthermore, the initial stage control logic includes: the fan in the freezer compartment does not run; the fan in the refrigerator compartment is controlled according to the set temperature in normal mode; and the compressor stops running when the refrigerator compartment reaches the set temperature.

[0023] Furthermore, the subsequent stage control logic includes: controlling the compressor to start, according to the ratio Vd*(T) 冻设 -Td): Vc*(T 藏设 -Tc) controls the speed of the fans corresponding to the freezer and refrigerator compartments, where Vd is the volume of the freezer compartment, and T is the fan speed. 冻设 Td is the set temperature of the freezer compartment, Vc is the volume of the refrigerator compartment, and T is the current temperature of the freezer compartment. 藏设 Tc is the set temperature of the cold storage compartment, and Tc is the current temperature of the cold storage compartment.

[0024] Furthermore, when only the refrigerator compartment has its rapid cooling function activated, if the temperature of the refrigerator compartment has not reached the set temperature of the rapid cooling function, the fan in the refrigerator compartment will be controlled to run at its maximum speed. If the temperature of the refrigerator compartment reaches the set temperature of the rapid cooling function, it is determined that there is no cooling demand in the refrigerator compartment, and the fan in the refrigerator compartment will be controlled to stop running.

[0025] Furthermore, when only the freezer compartment has its rapid cooling function activated, if the temperature of the freezer compartment has not reached the set temperature of the rapid cooling function, the fan in the freezer compartment will be controlled to run at its maximum speed. If the temperature of the freezer compartment reaches the set temperature of the rapid cooling function, it is determined that the freezer compartment has no cooling demand, and the fan in the freezer compartment will be controlled to stop running.

[0026] The refrigerator proposed in this invention includes a compressor, a refrigerator compartment with a fan, a freezer compartment with a fan, and a control module. The control module adopts the refrigeration equipment control method under the freezer-to-refrigeration function described in the above technical solution to control the compressor and the fans of the refrigerator compartment and the freezer compartment.

[0027] This invention proposes an additional control method for the new "rapid cooling" function after a function reversal, beyond the conventional "rapid cooling" function control method. This method is divided into three selection modes based on the compartment: "rapid cooling" is set only for the refrigerator compartment, "rapid cooling" is set only for the freezer compartment, and "rapid cooling" is set for both the refrigerator and freezer compartments simultaneously, meeting diverse user needs. The newly proposed airflow distribution control scheme for simultaneously activating the rapid cooling function in both compartments controls the fan speed according to a certain logical relationship, controlling the airflow entering the freezer and refrigerator compartments, thereby controlling the compartment temperatures to achieve maximum synchronization. Attached Figure Description

[0028] The present invention will now be described in detail with reference to the embodiments and accompanying drawings, wherein:

[0029] Figure 1 This is a flowchart of the refrigerator control process in the existing technology.

[0030] Figure 2 This is a flowchart of the process of simultaneously activating the rapid cooling function in both the freezer and refrigerator compartments under the transposition mode of the present invention;

[0031] Figure 3 This is a flowchart of the synchronous temperature control process of the freezer compartment in the present invention, which activates the transposition mode in the freezer mode.

[0032] Figure 4 This is the overall flowchart of the present invention.

[0033] Figure 5 This is a flowchart of an embodiment of the present invention where only the refrigeration compartment activates the rapid cooling function.

[0034] Figure 6 This is a flowchart of an embodiment of the present invention where only the freezer compartment activates the rapid cooling function.

[0035] Figure 7 This is an overall flowchart of a transposition mode in which both the freezer compartment and the refrigerator compartment of an embodiment of the present invention are in rapid cooling mode. Detailed Implementation

[0036] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0037] Therefore, a feature pointed out in this specification is used to describe one feature of one embodiment of the invention, and does not imply that every embodiment of the invention must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.

[0038] The rapid cooling control method for the compartment under the freezer-to-freeze function of the present invention includes a control method for simultaneously activating the rapid cooling function of the refrigeration compartment and the transferred freezer compartment, and a control method for activating the rapid cooling function only in the refrigeration compartment or only in the freezer compartment. The key part is the control method for simultaneously activating the rapid cooling function of the refrigeration compartment and the transferred freezer compartment.

[0039] like Figure 2 As shown, when the freezer compartment is switched and the refrigerator compartment is activated simultaneously with the rapid cooling function, the present invention uses a first-stage control logic and a second-stage control logic to control the compressor, the fan of the freezer compartment, and the fan of the refrigerator compartment in batches. The first-stage control logic is used to enable the refrigerator compartment and the freezer compartment in the switched mode to quickly reach the set temperature of the rapid cooling function. The second-stage control logic is used to synchronize the temperature of the refrigerator compartment and the freezer compartment in the switched mode under the rapid cooling function.

[0040] This invention divides the rapid cooling function into two parts for control. The first part is the first-stage control logic, which needs to quickly meet the user's needs so that the quick-freezing compartment and the refrigeration compartment in the transposition mode can reach the temperature requirements of the rapid cooling function as quickly as possible. Then, the second part is the second-stage control logic, in which the focus of this invention is to synchronize the temperature of the two compartments, thereby achieving energy saving and stable compartment temperature.

[0041] The compressor control in this invention is basically similar to conventional methods. When the temperature has not reached the target temperature, it is controlled according to conventional logic. When the temperature reaches the target temperature, it can be stopped. The main feature of this invention is the adjustment of the fan speed in the refrigerator compartment and the freezer compartment so that the freezer compartment and the refrigerator compartment can achieve temperature synchronization in the shortest possible time. Specifically, this invention performs different controls according to different situations, thereby achieving both rapid and simultaneous temperature synchronization between the freezer compartment and the refrigerator compartment.

[0042] In one specific embodiment, the first stage control logic includes: the fan in the freezer compartment runs at maximum speed until the freezer compartment reaches the set temperature of the rapid cooling function; the fan in the refrigerator compartment runs at maximum speed until the refrigerator compartment reaches the set temperature of the rapid cooling function; and the compressor stops when both the freezer compartment and the refrigerator compartment reach the set temperature of the rapid cooling function.

[0043] In this embodiment, the freezer compartment is already in transposition mode, thus equivalent to a regular refrigerator compartment. That is, the current temperature of the freezer compartment in transposition mode is much higher than the set temperature for the rapid cooling function. Therefore, like the refrigerator compartment, the fans in the freezer compartment need to operate at maximum speed so that both the freezer and refrigerator compartments can quickly achieve the rapid cooling function. In other embodiments, the largest capacity compartment can be used as a reference, with its fan operating at maximum speed. Then, the fans in other capacity compartments adjust their speeds according to their capacity ratios, so that all compartments simultaneously reach the set temperature for the rapid cooling function in the shortest possible time. For example, if the capacity (i.e., volume) of the refrigerator compartment is 1.5 times that of the freezer compartment, then the refrigerator compartment fan operates at maximum speed, and the freezer compartment fan speed is the freezer compartment fan speed divided by 1.5.

[0044] In one specific embodiment, the second-stage control logic includes: controlling the compressor to start, according to the ratio v 冻速率 :v 藏速率 Control the fan speed of the freezer and refrigerator compartments, v 冻速率 v represents the rate of temperature change in the freezer compartment per unit time after the compressor stops. 藏速率 This represents the rate of temperature change in the cold storage compartment per unit time after the compressor stops.

[0045] In this embodiment, after the freezer and refrigerator compartments reach the set temperature for the rapid cooling function, the compressors stop. However, the freezer and refrigerator compartments have different volumes and usage conditions, so the temperature rise of each compartment after the compressor stops is also different. This invention uses the ratio of the rate of temperature change of the freezer and refrigerator compartments per unit time after the compressor stops to control the speed of each fan, so that the two compartments can achieve temperature synchronization under different conditions.

[0046] The rapid cooling function is usually intermittent. To meet users' cooling needs and achieve energy saving, the rapid cooling function will revert to normal refrigeration after a period of time. In one specific embodiment, when the freezer compartment is in the transposition mode and the refrigeration compartment simultaneously activates the rapid cooling function for a preset time, the rapid cooling function is deactivated. The fan speeds of the freezer and refrigeration compartments are controlled according to the ratio Vd:Vc until the freezer and refrigeration compartments reach the preset temperature of the corresponding refrigeration mode, where Vd is the volume of the freezer compartment and Vc is the volume of the refrigeration compartment.

[0047] In this embodiment, both the freezer and refrigerator compartments in the transposition mode complete the rapid cooling function. Therefore, when the rapid cooling function ends, based on the above-mentioned technical solution of the present invention, the temperatures of the refrigerator compartment and the freezer compartment in the transposition mode are synchronized. At this time, the refrigerator compartment and the freezer compartment need to maintain normal refrigeration control. It is only necessary to control the speed of their respective fans according to the volume ratio. When their respective refrigeration needs are met, the compressor stops. Since the present invention synchronizes the temperatures of the freezer compartment and the refrigerator compartment in the transposition mode during the rapid cooling function stage, and then achieves temperature synchronization of the freezer compartment and the refrigerator compartment through volume ratio adjustment in the normal refrigeration mode, both basically reach the shutdown condition at the same time. Therefore, the problem of uncoordinated compressor shutdown time can also be solved.

[0048] In one specific embodiment, when the freezer compartment is powered on by the refrigeration equipment and the transposition mode is activated, the speed of the corresponding fan in the freezer compartment and the refrigerator compartment is controlled according to the ratio Vd:Vc until the freezer compartment and the refrigerator compartment reach the preset temperature of the corresponding refrigeration mode, where Vd is the volume of the freezer compartment and Vc is the volume of the refrigerator compartment.

[0049] When the freezer compartment starts in switch mode as soon as the refrigeration equipment is powered on, the freezer compartment is actually a switchable refrigerator compartment from the beginning. Therefore, the fan speed of the two refrigerator compartments is controlled according to their volume, so that the two compartments can always maintain the same temperature.

[0050] like Figure 3 As shown, in one specific embodiment, when the freezer compartment is in the stable cooling mode of the refrigeration equipment and the switch mode is activated, the fans of the freezer compartment and the fans of the refrigerator compartment are controlled in batches using initial stage control logic and secondary stage control logic. The initial stage control logic is used to reduce the temperature difference between the freezer compartment and the refrigerator compartment, and the secondary stage control logic is used to synchronize the temperature of the refrigerator compartment and the freezer compartment in the switch mode in the refrigeration mode.

[0051] When the freezer compartment is in normal freezing mode and then switches to switching mode, the temperature of the freezer compartment is significantly lower than the target temperature of the freezer compartment in switching mode, which is much lower than the normal refrigeration temperature. At this time, it is necessary to quickly reduce the temperature difference between the freezer compartment and the refrigeration compartment. However, after reducing the temperature difference, the temperature synchronization of the two compartments still needs to be finely adjusted. Therefore, this invention adopts a two-step approach to quickly achieve temperature synchronization between the freezer compartment and the refrigeration compartment in this situation.

[0052] In one specific embodiment, the initial stage control logic of the present invention includes: the fan in the freezer compartment is not running; the set temperature in normal mode controls the fan in the refrigerator compartment; and the compressor stops running when the refrigerator compartment reaches the set temperature. If the refrigerator compartment has already reached the set temperature from the beginning, then it is only necessary to stop the compressor and turn off the fan in the freezer compartment.

[0053] In one specific embodiment, the secondary stage control logic includes: controlling the compressor to start, according to the ratio Vd*(T) 冻设 -Td): Vc*(T 藏设 -Tc) controls the speed of the fans corresponding to the freezer and refrigerator compartments, where Vd is the volume of the freezer compartment, and T is the fan speed. 冻设 Td is the set temperature of the freezer compartment, Vc is the volume of the refrigerator compartment, and T is the current temperature of the freezer compartment. 藏设 Tc is the set temperature of the cold storage compartment, and Tc is the current temperature of the cold storage compartment.

[0054] In this embodiment, since the use of the freezer compartment and the refrigerator compartment is different in the transposition mode, the temperature of the freezer compartment and the refrigerator compartment can be accurately synchronized in the transposition mode by adjusting the temperature difference and volume of the two compartments from the refrigerator set temperature.

[0055] In one specific embodiment, when only the refrigerator compartment has the rapid cooling function activated, if the temperature of the refrigerator compartment has not reached the set temperature of the rapid cooling function, the fan in the refrigerator compartment is controlled to run at its maximum speed. If the temperature of the refrigerator compartment reaches the set temperature of the rapid cooling function, it is determined that the refrigerator compartment has no cooling demand, and the fan in the refrigerator compartment is controlled to stop running.

[0056] In one specific embodiment, when only the freezer compartment has the rapid cooling function activated, if the temperature of the freezer compartment has not reached the set temperature of the rapid cooling function, the fan in the freezer compartment is controlled to run at its maximum speed. If the temperature of the freezer compartment reaches the set temperature of the rapid cooling function, it is determined that the freezer compartment has no cooling demand, and the fan in the freezer compartment is controlled to stop running.

[0057] The invention will now be described in conjunction with the accompanying drawings.

[0058] like Figure 4As shown, this embodiment uses a dual-fan refrigerator with a freezer-to-refrigeration function as an example. It has two control modes: one is the normal factory setting, such as a refrigerator with a refrigerator compartment on top and a freezer compartment on the bottom. The freezer compartment's freezing mode is typically controlled at a target temperature of -24℃ to -16℃, while the refrigerator compartment is typically controlled at a target temperature of 2℃ to 8℃. During the cooling cycle, after the refrigerator compartment activates its rapid cooling function, it is controlled at the rapid cooling target of 2℃. Then, after H hours, the rapid cooling function is deactivated, and it switches back to normal refrigerator mode. Another mode is the conversion mode, which converts the freezer compartment into a refrigerator compartment. Both the freezer and refrigerator compartments are then controlled at a target temperature of 2°C-8°C. During the refrigeration cycle, if the rapid cooling function is activated, it is controlled according to the above-described technical solution of this invention. There are three scenarios: one is that only the freezer compartment in the conversion mode activates the rapid cooling function; another is that only the refrigerator compartment activates the rapid cooling function; and the third is that both the freezer and refrigerator compartments in the conversion mode activate the rapid cooling function simultaneously. In all three scenarios, the rapid cooling function is deactivated after H hours, and the system switches to normal refrigerator mode.

[0059] like Figure 5 As shown, the refrigerator operates under normal settings, with the freezer compartment in freezing mode and the refrigerator compartment in refrigerator mode. Then, the freezer compartment activates a transfer mode. Both the freezer and refrigerator compartments are controlled at a target temperature of 2℃-8℃. If the freezer compartment does not use the quick-cooling function, the refrigerator compartment does. The refrigerator compartment is controlled at 2℃, while the freezer compartment is controlled at the set temperature. If the refrigerator compartment temperature is higher than 2℃, the compressor speed increases and operates at SMAX (the compressor's maximum speed). The refrigerator fan speed also increases and operates at its maximum speed until the refrigerator compartment temperature is less than or equal to 2℃. If the refrigerator compartment temperature is less than or equal to 2℃, the refrigerator fan turns off, indicating no cooling demand in the refrigerator compartment. When the refrigerator compartment's quick-cooling function reaches H hours, it exits the quick-cooling function, and the refrigerator compartment's fan is controlled according to the target temperature of the normal refrigerator mode.

[0060] like Figure 6As shown, the refrigerator operates under normal settings, with the freezer compartment in freezing mode and the refrigerator compartment in refrigerator mode. Then, the freezer compartment activates a transfer mode. Both the freezer and refrigerator compartments are controlled at a target temperature of 2℃-8℃. If the refrigerator compartment does not use the quick-cooling function, the freezer compartment uses it, with the freezer compartment controlled at 2℃ and the refrigerator compartment at the set temperature. If the freezer temperature in transfer mode exceeds 2℃, the compressor speed increases and operates at SMAX (the compressor's maximum speed), and the freezer fan speed increases and operates at its maximum speed until the freezer temperature in transfer mode is less than or equal to 2℃. If the freezer temperature is less than or equal to 2℃, the freezer fan turns off, indicating no cooling demand in the freezer compartment. When the freezer compartment's quick-cooling function reaches H hours, it exits the quick-cooling function, and the freezer fan in transfer mode is controlled according to the target temperature of the normal refrigerator mode.

[0061] like Figure 7 As shown, after the refrigerator is started and powered on for the first time, if the user activates the transposition mode at this time, the air volume entering the freezer compartment and refrigerator compartment in the transposition mode will be allocated according to the volume ratio method. That is, the ratio of the fan speed of the freezer compartment to the fan speed of the refrigerator compartment is equal to the ratio of the volume of the freezer compartment to the volume of the refrigerator compartment.

[0062] If the user does not activate the transposition mode during the initial power-on period, the temperature Td of the freezer compartment will be controlled according to Td≤-18℃, and the temperature Tc of the refrigerator compartment will be controlled according to 2℃≤Tc≤8℃. At this time, the fans in the freezer and refrigerator compartments will be controlled in normal mode to ensure that the temperature is achieved until the system is balanced, which is the control method used in the existing technology.

[0063] During normal refrigerator operation, if the user activates the freezer compartment's switching mode, both the freezer and refrigerator compartments will be controlled within the range of [2℃, 8℃]. Since the freezer temperature (Td) is typically less than 2℃, and the refrigerator temperature may satisfy 2℃ ≤ Tc ≤ 8℃, the freezer fan will not operate. The refrigerator fan's operation will be controlled based on the set temperature until the freezer temperature gradually rises to the set temperature. Once the refrigerator compartment reaches the set temperature, the compressor will stop, and then the temperature will be adjusted according to the ratio Vd*(T). 冻设 -Td): Vc*(T 藏设 -Tc) controls the speed of the fans corresponding to the freezer and refrigerator compartments, where Vd is the volume of the freezer compartment, and T is the fan speed. 冻设 Td is the set temperature of the freezer compartment, Vc is the volume of the refrigerator compartment, and T is the current temperature of the freezer compartment. 藏设 Tc is the set temperature of the cold storage compartment, and Tc is the current temperature of the cold storage compartment.

[0064] In transposition mode, if the user simultaneously activates the rapid cooling function of both the freezer and refrigerator compartments, the compressor, the freezer fan, and the refrigerator fan all operate at maximum speed to quickly meet the rapid cooling requirements. Once the requirements are met, the compressor stops. Upon restarting, the speed is adjusted according to ratio v. 冻速率 :v 藏速率 Control the fan speed of the freezer and refrigerator compartments, v 冻速率 v represents the rate of temperature change in the freezer compartment per unit time after the compressor stops. 藏速率 This represents the rate of temperature change in the refrigerator compartment per unit time after the compressor stops. After the rapid cooling function reaches H hours, it is deactivated, and the freezer and refrigerator compartments in the transfer mode are controlled according to the set temperature of the normal refrigerator mode.

[0065] The present invention achieves temperature synchronization between two compartments under different modes through the above technical solution.

[0066] The present invention also protects a refrigerator, which includes a compressor, a refrigerator compartment with a fan, a freezer compartment with a fan, and a control module, etc. The control module uses the above-mentioned refrigeration equipment control method under the freezer-to-refrigeration function of the present invention to control the compressor and the fans of the refrigerator compartment and the freezer compartment.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A control method for a refrigeration equipment with a freezer-to-refrigeration function, characterized in that, When the freezer compartment is in the transposition mode and the refrigerator compartment is simultaneously activated with the rapid cooling function, the compressor, the fan in the freezer compartment, and the fan in the refrigerator compartment are controlled in batches using a first-stage control logic and a second-stage control logic. The first-stage control logic is used to enable the refrigerator compartment and the freezer compartment in the transposition mode to quickly reach the set temperature of the rapid cooling function, and the second-stage control logic is used to synchronize the temperatures of the refrigerator compartment and the freezer compartment in the transposition mode under the rapid cooling function. The first stage control logic includes: the fan in the freezer compartment runs at maximum speed until the freezer compartment reaches the set temperature of the rapid cooling function; the fan in the refrigerator compartment runs at maximum speed until the refrigerator compartment reaches the set temperature of the rapid cooling function; and the compressor stops when both the freezer compartment and the refrigerator compartment reach the set temperature of the rapid cooling function. The second stage control logic includes: controlling the compressor to start, according to a ratio. : Control the fan speed of the freezer and refrigerator compartments. This represents the rate of temperature change in the freezer compartment per unit time after the compressor stops. This represents the rate of temperature change in the cold storage compartment per unit time after the compressor stops.

2. The refrigeration equipment control method under the freezing-transfer refrigeration function as described in claim 1, characterized in that, When the freezer compartment is powered on by the refrigeration equipment and the switching mode is activated, the fan speeds of the freezer and refrigerator compartments are controlled according to the ratio Vd:Vc until the freezer and refrigerator compartments reach the preset temperature of the corresponding refrigeration mode. Vd is the volume of the freezer compartment and Vc is the volume of the refrigerator compartment.

3. The refrigeration equipment control method under the freezer-transfer refrigeration function as described in claim 1, characterized in that, When the freezer compartment is in the transposition mode and the refrigerator compartment is simultaneously activated with the rapid cooling function for a preset time, the rapid cooling function is deactivated. The speed of the corresponding fan in the freezer compartment and the refrigerator compartment is controlled according to the ratio Vd:Vc until the freezer compartment and the refrigerator compartment reach the preset temperature of the corresponding refrigerator mode. Vd is the volume of the freezer compartment and Vc is the volume of the refrigerator compartment.

4. The refrigeration equipment control method under the freezer-transfer refrigeration function as described in claim 1, characterized in that, When the freezer compartment is in the stable cooling mode of the refrigeration equipment and the switch mode is activated, the fans of the freezer compartment and the refrigerator compartment are controlled in batches using initial stage control logic and secondary stage control logic. The initial stage control logic is used to reduce the temperature difference between the freezer compartment and the refrigerator compartment, and the secondary stage control logic is used to synchronize the temperature of the refrigerator compartment and the freezer compartment in the switch mode in the refrigeration mode.

5. The refrigeration equipment control method under the freezer-transfer refrigeration function as described in claim 4, characterized in that, The initial stage control logic includes: the fan in the freezer compartment does not run; the fan in the refrigerator compartment is controlled according to the set temperature in normal mode; and the compressor stops running when the refrigerator compartment reaches the set temperature.

6. The refrigeration equipment control method under the freezing-transfer refrigeration function as described in claim 4, characterized in that, The subsequent stage control logic includes: controlling the compressor to start, according to the ratio Vd*( -Td):Vc*( -Tc) controls the speed of the fans corresponding to the freezer and refrigerator compartments, where Vd is the volume of the freezer compartment. Td is the set temperature of the freezer compartment, Td is the current temperature of the freezer compartment, and Vc is the volume of the refrigerator compartment. Tc is the set temperature of the cold storage compartment, and Tc is the current temperature of the cold storage compartment.

7. The refrigeration equipment control method under the freezer-transfer refrigeration function as described in claim 1, characterized in that, When only the refrigerator compartment has its rapid cooling function activated, if the temperature of the refrigerator compartment has not reached the set temperature of the rapid cooling function, the refrigerator compartment fan will be controlled to run at its maximum speed. If the temperature of the refrigerator compartment reaches the set temperature of the rapid cooling function, it is determined that the refrigerator compartment has no cooling demand, and the refrigerator compartment fan will be controlled to stop running.

8. The refrigeration equipment control method under the freezer-transfer refrigeration function as described in claim 1 or 2, characterized in that, When only the freezer compartment has its rapid cooling function activated, if the temperature of the freezer compartment has not reached the set temperature of the rapid cooling function, the freezer compartment fan will be controlled to run at its maximum speed. If the temperature of the freezer compartment reaches the set temperature of the rapid cooling function, it is determined that the freezer compartment has no cooling demand, and the freezer compartment fan will be controlled to stop running.

9. A refrigerator, comprising a compressor, a refrigerator compartment with a fan, a freezer compartment with a fan, and a control module, wherein the control module employs the refrigeration equipment control method under the freezer-to-refrigeration function as described in any one of claims 1 to 8 to control the compressor and the fans of the refrigerator compartment and the freezer compartment.

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